AIR CONDITIONER FOR VEHICLE

摘要

Disclosed is a vehicle air conditioning device capable of increasing the humidity of dry air inside a vehicle in the winter with a relatively small amount of energy. The vehicle air conditioning device forms a cooling system including: a compressor compressing and emitting a coolant; a condenser condensing the high-pressure coolant emitted from the compressor; an expansion valve throttling the coolant liquefied by being condensed in the condenser; and an evaporator evaporating the coolant by heat-exchanging the low-pressure liquefied coolant throttled by the expansion valve with air sent to a space inside a vehicle. In addition, the vehicle air conditioning device is equipped with a collecting unit collecting condensate generated in the evaporator; a heating unit humidifying the space inside the vehicle by heating the condensate collected in the collecting unit; and a dehumidifying condenser formed in the rear side of the evaporator in an air flowing direction. The coolant emitted from the compressor is circulated to the expansion valve via the dehumidifying condenser by selectively bypassing the condenser. Accordingly, the vehicle air conditioning device is capable of effectively increasing the humidity of the dry air inside the vehicle in the winter with a relatively small amount of energy, improving the efficiency of an air conditioner as defrosting may be necessary in everyday use of the air conditioner, and preventing an increase of bacteria or odor due to water generated by the air conditioner in the summer.